True stress true strain curves of 51CrV4 spring steel grade

True stress true strain curves of 51CrV4 spring steel grade
Cylindrical samples  5 x 10 mm were machined, with the cylinder axis being in the rolling direction.
Deformational dilatometer apparatus TA Instruments 805A/D (TA Instruments, New Castle, PA, USA) was employed for determination of true stress - true strain curves,
Experiments were performed at different temperatures (1000, 1050, 1100, 1150, and 1200 °C) and strain rates (0.01, 0.1, 1, and 10 s−1).
A standard non-lubricated 0.1 mm thick Mo plates are placed on sample contact surfaces.
Data are firstly used in the article "https://www.mdpi.com/2075-4701/9/3/290"
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Files "BS2V1-xxxx-y.yy.asc" are true stress true strain data for the spring steel presented in the article
xxxx-temperatures - 1000, 1050, 1100, 1150 and 1200 °C
y.yy-strain rates - 0.01,0.1,1,10 s-1.

For execution of four script files (starintg with OCT_*) in the directory, octave is required.

It can be downloaded and installed from "https://octave.org/" under the following conditions:
Copyright © 1998-2022 John W. Eaton.
This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.

Required packages are 'control' and 'optimization'.

Within scripts provided, edit paths to filenames where required, denoted as
%!!!!!!!!!!!!!!!!!!!
%enter your path here

Two *.mat files in the directory are :
* "SYSE_1200_0o01.mat" - transfer function G(s) for (1200°C, 0.01 s-1)saved as mat file
* "SYSE_V1_1000_0_01_P4_Z3.mat - transfer function G'(s) for (1000°C, 0.01 s-1)saved as mat file with 3 zeros and 4 poles.